Tasks Tree view, Add 'Zoom on branch'; To access: Right Long Press on a branch/task then 'Zoom on branch'; The scope of Actions, Search and Task Views narrow down to zoomed branches; Also available as preference: 'Navigation Preferences -> Task gestures -> Left long press action -> Zoom on branch'.

Add 'Copy branch to list' -- Tasks Tree, Right Long press on branch/task, Copy branch to list. List options include NEW adhoc list, useful for preserving original branch, new list will be the work list that can be deleted after use.